FILE - In this Nov. 5, 2010 file photo, Swiss pilot Yves Rossy, the first man in the world to fly under a jet-fitted wing, speeds through the air to perform a looping in Bercher, Switzerland. A Swiss adventurer hopes to fulfill a dream by flying through the Grand Canyon with his jet-propelled wingsuit. Former fighter pilot Yves Rossy will attempt the stunt early Friday, May 6, 2011. (AP Photo/Keystone, Laurent Gillieron, pool, file)— AP

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FILE - In this Nov. 5, 2010 file photo, Swiss pilot Yves Rossy, the first man in the world to fly under a jet-fitted wing, speeds through the air to perform a looping in Bercher, Switzerland. A Swiss adventurer hopes to fulfill a dream by flying through the Grand Canyon with his jet-propelled wingsuit. Former fighter pilot Yves Rossy will attempt the stunt early Friday, May 6, 2011. (AP Photo/Keystone, Laurent Gillieron, pool, file)
/ AP